🔧 chore: align Gitea workflow with local CI/CD script

- Add go mod tidy step to match local script
- Execute build.sh script in Docker Compose container
- Maintain consistent build process between local and CI
- Ensure Docker cache compatibility

Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>

.gitea/workflows/ci-cd.yaml

@@ -177,6 +177,16 @@ jobs:
             echo "CACHE_AVAILABLE=false" >> $GITHUB_ENV
           fi
 
+      - name: Install dependencies
+        run: |
+          if [ "${{ env.CACHE_AVAILABLE }}" = "true" ]; then
+            echo "Running in Docker Compose container..."
+            docker compose -f docker-compose.build.yml exec -w /workspace build-cache sh -c "go mod tidy"
+          else
+            echo "Running natively..."
+            go mod tidy
+          fi
+
       - name: Start build cache container with Docker Compose
         run: |
           if [ "${{ env.CACHE_AVAILABLE }}" = "true" ]; then
@@ -263,7 +273,14 @@ jobs:
         run: swag fmt
 
       - name: Build binaries
-        run: ./scripts/build.sh
+        run: |
+          if [ "${{ env.CACHE_AVAILABLE }}" = "true" ]; then
+            echo "Running in Docker Compose container..."
+            docker compose -f docker-compose.build.yml exec -w /workspace build-cache sh -c "./scripts/build.sh"
+          else
+            echo "Running natively..."
+            ./scripts/build.sh
+          fi
 
       # NOTE: Artifact upload disabled - actions/upload-artifact@v4 not available on Gitea
       # TODO: Replace with Gitea-specific upload action when available